4661905 has 8 divisors (see below), whose sum is σ = 5730984. Its totient is φ = 3638400.

The previous prime is 4661887. The next prime is 4661911. The reversal of 4661905 is 5091664.

It can be written as a sum of positive squares in 4 ways, for example, as 197136 + 4464769 = 444^2 + 2113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4661905 - 2⁷ = 4661777 is a prime.

It is an Ulam number.

It is a Duffinian number.

4661905 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11166 + ... + 11575.

It is an arithmetic number, because the mean of its divisors is an integer number (716373).

Almost surely, 2^4661905 is an apocalyptic number.

It is an amenable number.

4661905 is a deficient number, since it is larger than the sum of its proper divisors (1069079).

4661905 is a wasteful number, since it uses less digits than its factorization.

4661905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22787.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 4661905 is about 2159.1445065118. The cubic root of 4661905 is about 167.0530745524.

The spelling of 4661905 in words is "four million, six hundred sixty-one thousand, nine hundred five".